Air-valve.



P. J. GREBEL & W. J. THEIS.

AIR VALVE.

APPLICATION FILED NOV. 22, 1909.

579 Patented Dec. 13, 1910.

2 SHEETS-SHEET 1.

P. J. GREBEL & W. J. THEIS.

AIR VALVE.

APPLICATION FILED NOV. 28, 1909. 978,579. Patented Dec. 13, 1910.

a isms-SHEET 2.

" thereof. Fig. 3

UNITED sTATEsraTENT OFFICE.

PAUIIJ. GREBEL AND WILLIAM J. TI-IEIS, OF CHICAGO, ILLINOIS, ASSIGNORSTO MANU- FAC'I'URERS EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

AIR-VALVE To all whom it may concern:

Be it known that we, PAUL J. GREBEI. and \Vnmmn J. THEIS, citizens ofthe United States, and residents ofthe city of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Air-Valves; and we do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to a valve for controlling the supply and exhaustof the motive fluid to and from the working cylinders.

The object of our invention is to provide a simple, durable andefficient device of the kind described, and to this end our inventionconsists in the matters hereinafter described and more fully pointed outand defined in the appended claims.

In the drawings: Figure 1 illustrates a side elevation of a deviceembodying this invention. Fig. 2 shows an end elevation shows anelevation of our device operatively attached to a friction drivencountershaft for controlling the operation of the friction mechanism ofthe a view similar to that shown in Fig. 4, showing the parts inoperation. F1" 6 1s a View of a modified construction embodyingv thisinvention. Fig. 7 is a section taken through one of the' valve casingsat substantially right angles with Fig. 4, and showing parts inelevation. Fig. 8 1s a section taken on line 88 of Fig. 7. Fig. 9 is asection taken on line 99 of Fig. 7.

As. shown in the drawings: 1, indicates connected casings, the interiorof each of which is divided into three chambers 2, 3, and 4, bytransverse partitions and 6, each of which is provided with a centralopening. The inlet-chamber 2, is provided with a plurality of openings7, communicating with an annular passage 8, which is in turnconnected bya duct 9, to.a fluid supply pipe 10. The intermediate chamber 3,-isconnected by a suitable pipe 11, to the working cylinder or othermechanism, the operation of which it is desired to control by theoperation of my device. The outletchamber 4, is provided with anynumberof suitable exhaust ports 12.

Specification of Letters Patent.

Application filed November 22. 1909.

Patented Dec. 13, 1910. Serial No. 529,484.

A freely movable valve stem 14, is position'ed within the casing havingon opposite ends thereof heads -16, which are adapted to seat onopposite sides of the partitions 5.(i respectively. A washer 17, ofsuitable packing material, such, for example, as leather or rubber isprovided for the inner face of each of the valves 15 and 16, to insure afluid tight closure when the respective valve is seated.

The valve stem H, is corrugated longitudinally to permit free passage ofair from one chamber to the other at the proper time.

Any suitable operating mechanism may be provided to force the closureinwardly to force the valve 16, on its seat to close communicationbetween the exhaust chamber 4, and chamber 3 and to force the valve 15,from its seat to open communication between the inlet chamber 2 andchamber 3. As shown, for this purpose a stem or shank 18, is providedwhich extends through a sleeve 19, provided with an enlarged chamber inits outer end and which is secured to the valve casing by a cap screw50. A spring 20, is engaged in the chamber in the sleeve around the stemand bears against the enlarged head18, of the stem and normally acts toforce the stem to its outer limit of movement out of engagement with thevalve 16.

A bracket 25,.is provided integral with the'casings 1, on which arepivoted levers 26 and 27, one for each stem and each of which isprovided with notches or seats 3637. A standard 33,-is secured to thebracket 25, which, at its upper end, is shaped to provide stops 39, andpivotally secured to said standard 33, by means of a shaft 32, is adouble acting rock member which is provided with fingers 34:--35, onefor each lever. A lug 38, is provided at the outer end of said memberwhich engages the stops 39, at the limits of movement of the member ineach direction and actuating levers 52, are secured to said shaft 32, by

means of which the adjustment of the valve more clearly in my patent forPneumatito adjust the valve closure to cut ofi com-,

munication between the inlet chamber and chamber 5). and to affordcommunication between exhaust chamber 4., and chamber 3, therebyexhausting the pressure from the cylinder. Rocking the shaft now ineither direction of course admits pressure to the respective cylinderand actuatin the shaft from one limit of its movement to the othersimultaneously permits one closure to admit inlet pressure to oneworking cylinder and the closure in the casing to exhaust the pressurefrom the other working cylinder.

Asshown, in Fig. 6, the mechanism for operating the stem 18, is somewhatmodified and is adapted for individual operation. In this construction alever 22, is pivoted at one end to a luq .21. and extends across the topof the head 18', of the stem 18. A cam lever .23. is pivoted to astandard 23', which, when actuated in one direction forces the stem 18.inwardly and on reverse actuation permits the spring to force the stemto normal. (oacting stops -6l, are provided which limits the movement ofthe am lever.

Numerous details of construction may be varied and we therefore do notdesire to limit this application for patent otherwise than necessitatedby the prior art.

Vi e claim as our invention:

l. A controlling valve comprising a casing provided with an inletchamber, an outlet chamber and an intermediate chamber, internalvalveseats between thegchambers, a movable closure provided with headsarranged to seat. on the valve seats to control the passage between saidchambers. and means for controlling the operation of said closure. y

2. A controlling valve comprising a casing provided with an inletchamber, an outlet chamber and an intermediate chamber. a movableclosure extending into each of said chambers arranged to control thepassage between said chambers, and means for passage between saidchambers, and means for controllin the operation of said closure.

4. A contro ling valve comprising a cas ing provided with an inletchamber. an outlet chamber and an intermediate chamber, a movableclosure arranged to control the passage between said chambers, a plungerextending through the wall of said casing adapted to actuate saidcl0sure,a lever adapted to actuate the plunger in one direction and avspring for actuating the plunger oppositely.

5. In a device of the class described a casing provided with an inletchamber, an outlet chamber, and a chamber intermediate the same adaptedto communicate with each, a movable closure in the casing forcontrolling the communication between the chamlie-rs, a plunger looselyengaging the closure for actuating it in one direction, and a spring forretracting the plunger adapting inlet pressure to reversely actuate theclosure.

6. A controlling valve comprising a casing provided with an inletchamber. an outlet chamber and an intermediate chamber. a. movable valvemember extending through said intermediate chamber and projectinginto-the other chambers, a head oneach end of the member in said inletand said outlet chambers arranged to control the passage between saidchambers, and means for actuating the valve member.

7. A controlling valve comprising connected casings, each provided withan inlet chamber, an outlet chamber and an intermediate chamber, alongitudinally movable closure extending into each of said chambers ofeach casing arranged to control the passage between said chambers, aclosure actuating stem for each casing, levers 'piv-- oted above thecasings bearing on the outer ends of the stems, a rock shaftand a doubleacting member thereon for selectively actuating the levers.

8. A controlling valve comprising a casing provided with an inletchamber. an outlet chamber and an intermediate chamber. a longitudinallymovable closure extending into each of said chambers ar anged to controlthe passage between said chambers; a plunger extending through the wallof said casing adapted to engage said closure to adjust the same toafford communication between the inlet chamber and intermediate chamberand to close communication between the outlet chamber and intermediatechamber, means for actuating the plunger chambers.

9. A controlling valve comprising connected casings, each provided withan inlet chamber, an outlet chamber and an intermetween said chambers,aplunger for each closure, pivoted members bearing on the plungers andmeans for oscillating the pivoted members in effecting the adjustmentsof g the closures.

10. A controlling valve comprising a casing provided with an inletchamber, an outlet chamber and an intermediate chamber, a movableclosure extending through said intermediate chamber with a partpositioned in said inlet chamber and a part positioned in said outletchamber arranged to control the passage between said chambers, and aplunger extending through the wall of said casing adapted totemporarily' engage said closure to control its position.

11. A controlling valve comprising a pair of connected. casings eachprovided with an inlet chamber. an outlet chamber and an intermediatechamber, a movable closure in each casing arranged to control thepassage between said chambers, a reciprocating plunger for each closure,and oscillating means for actuating the reciprocating plunger.

12. A controlling valve comprising a pair of connected casings eachprovided with an ..inlet chamber, an outlet. chamber and an intermediatechamber, a longitudinally movable closure in each casing arranged tocontrol the passage between said chambers, means common to both of saidcasings for mechanically actuating the closures in one direction andsaid closures operated by inlet pressure in the opposite direction.

13. A controlling valve comprising a pair of connected casings eachprovided with an inlet chamber an outlet chamber, and an intermediatechamber, a movable closure in each casing adapted for mechanicaloperation in one direction, and pneumatic operation in the oppositedirection and mechanisms for selectively actuating either closure in thefirst named direction.

14. A controlling valve comprising a pair of connected casings eachprovided with an inlet aperture, an outlet aperture and an exhaustaperture, a movable closure in each casing arranged to controlcommunication between said apertures, and means common to both of saidcasings for actuating the closuresin one direction and each closureinlet chamber, an outlet chamber and any intermediate chamber, alongitudinally'movable closure in each casing extending into each ofsaid chambers and a rrangcd to control the passage between saidchambers, a plunger extending through the wall of each casing adapted totemporarily engage the closure positioned in said casing to control oneof its positions, and means common to both of said casings forcontrolling the position of said plunger.

16. A controlling valve comprising connected casings, a pressure inletpassage opening into both casings, an outlet pipe opening from eachcasing, an atmosphere exhaust opening for each casing, controlling nismfor selectively actuating the controlling valves proper to affordcommunication between the pressure inlet passage and either outlet pipe.1.1.

17. A con trolling valve comprising connected casings, a pressure inletpassage opening into both casings, an outlet ipe opening from eachcasing, an atmosplere exhaust opening for each casing, controllingvalves proper in each casing, mechanism for selectively actuating thecontrolling valves proper to afford communication between the pressureinlet passage and either outlet pipe, and said controlling valvesadapted to be operated by pressure from the inlet passage to closecommunication between the inlet passage and outlet pipe and to opencommunication between the outlet pipe and exhaust opening in therespective casing.

18. A rality of casings, an inlet chamber, an outlet chamber and anexhaust chamber for each casing, a closure in each casing and mechanismsfor selectively actuating either closure to afl'ord communicationbetween the inlet chamber and outlet chamber of its casing.

19. A controlling valve com rising a plurality of casings, each casingavin an inlet chamber, an outlet chamber an an exhaust chamber, apassage connecting the in- In testimony whereof we have hereuntosubscribed our names in the presence of two subscribing wltnesses.

PAUL J. GREBEL. WM. J. THEIS.

Vitnesses: LAWRENCE REIBSTEIN,

K. E. HANNAH.

valves proper in each casing and mechacontrolling valve comprising a plunect the outlet chamber and exhaust chamher and mechanism for actuatingthe valves.

let chambers of all the casings, and valves

